The Serpent SER401766 springs provide a C=7.8 stiffness aimed at refining turn-in and mid corner grip for the 4X EVO. Their blue colour helps when comparing multiple rates during setup work.
These springs are manufactured to give stable behaviour across different surfaces and speeds. The C=7.8 rate balances firmness and compliance to keep the car predictable through sequence turns.
Specifically matched to Serpent 4X EVO shock hardware, these springs fit into standard shock assemblies without modification. Use them when testing different spring/damper combinations to find the best handling mix.
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